55552403 has 4 divisors (see below), whose sum is σ = 57344448. Its totient is φ = 53760360.

The previous prime is 55552391. The next prime is 55552411. The reversal of 55552403 is 30425555.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55552403 - 2¹² = 55548307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55552493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 895976 + ... + 896037.

It is an arithmetic number, because the mean of its divisors is an integer number (14336112).

Almost surely, 2^55552403 is an apocalyptic number.

55552403 is a deficient number, since it is larger than the sum of its proper divisors (1792045).

55552403 is a wasteful number, since it uses less digits than its factorization.

55552403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792044.

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 55552403 is about 7453.3484421433. The cubic root of 55552403 is about 381.5641964974.

Adding to 55552403 its reverse (30425555), we get a palindrome (85977958).

It can be divided in two parts, 55552 and 403, that added together give a palindrome (55955).

The spelling of 55552403 in words is "fifty-five million, five hundred fifty-two thousand, four hundred three".